Padlock



Feb. 2l, 1928. A 1,659 664 H. B. PAGE PADLOCK Filed Jan.` 24, 1924/I/l//A '/////////////////l//////,/

Patented Feb. 21, 1928.`

UNITED STATES HAnnY-E. PAGE, 0E EAs'i` HAVEN, CCNNECTICUTQASSICNCE ToSARGENT a COMPANY,

oF NEW HAVEN, CONNECTICUT.

` rAnLoCn Appneation nlednnary `24, 1924; serial Np. 688,222@

'This invention relates-to locksand,more especially, to ypadloeks whichmay be used for various purposes towhich sach locks are adapted.

invention as pertaining Ito aopadlock Vin which the shackle isentirelyremovable fromv the lock body, it will be understoodthat theinvention in all .offits aspectsis not to be limited to this typeoflock, but is also ap# plieahle to padlocksofthe usual oranypr'eferredV type. i 1

One ob3ect of the Working parts of which areof simple form andinexpensive to `make and assemble, and at the same time provide` a lookwhich is effective in`operationfandnnlikely` to get out of order. i

1 A Sau further `Object. of 1my inversin is .y to provide animprovedlockof theeharacprovidedtherefor.

A still further object of my` finvention is to provide an improved lockof thisoharacter, which shall have aconefvvay connection between theparts. of `the shackle *and the locking mechanismso that Whiletheshackle may `he insertedNintotho lockA without the use of the key, itwill be automaticallylocked (therein and may` not-be removedln'ntil `theproper key isused to release it;

Another *object of the Qinventionw :is `"the provision of aisiniple lockofthis character such that ai greatfnumberiof loekseanwhe made, each ofwhich will `be operable hy 'different keys, While at the same time ,amas- 'ter-key may be readily made :Whiohwill fit all of the locks. A

To these and other ends the invention consists `in the novel featuresand combination" of parts to he hereinafter deseribedfand claimed. y Iy` Vp y i Y i In the accompanying drawings:

Fig. 1 is a side elevational-view of a padlockexnbodying myimprovements; A j Y 2 is an edge view of the sameg``` .Fig is aloottoniI lan viewfoflthe lock; FigA is a seotiona "vieW on line 4e-lotFigi); H y

Fig. 5 is an elevational view of the lockn A A. i C the parts inunlocked position While l have lllustrated anddescrrbed .my

i my invention is to provide a new and improved lock of thischaracter,`

ing mechanism with the cover ofthe lock case removed; i Y f Fig. 6 isaiview similar to Fig. 5, showing i Fljg is a sectionalview ona Fig.`5"; 'f i A Fig. 8 is asectional view on line SQ-Sot Fig: 9 is asectional viewon line9-9 of otedfdetentsfnsed in the look.` i

11n Figloflthel drawin I haveshown (at 10` au look oaseyvith whici isemployed the shackle 11. Asillustrat'ed inthe drawings "Figilis a Viewof` `thekeyl` employed in and' shown moreparticularlyin Figs. 5 and vll,theshacklell is adapted tothe inserted in and ,removed bodily fromthelock oase, al-

wisli toilimit ni self totthis typel of shackle. `1T()` this end, tli`shaekleare provided With a `plurality of ratchetteeth or notches`lllsand 15, designed to cooperate with detents to `be hereinafter`described-i,:Which hold the `shackle against` removal `from the lockcase. w

though itwill be understood thatl `do not` e .arm`s12 and 13 oethe` Tothe lower half 16 of the lock f caselaresey `cured posts 17 `which`serve to hold the `two y halves `of `the oase together. .Additionalpbsts-18` andj19fmay alsobe` secured to` `this part oi. vtherese,andpnpon these posts are pivoted detents() `and 21,fwhicl1qat theirlower edges :are designed to entergfiihe `teeth or notcheslll andl`solas to hold the shackle `in position. ,Tlle detents 2( )"`and,212mm-`pr1se,'as shownm Fig. l1, side wingsQQ and 1 23 connectedatftheirupperand lovvewends hy the crossgbars'li `and 25. .'llhey `may of ycourse be`formed in one piece, thelower cross hars forming the lower edgesiof thedetents to engagethe ratchet teeth` of the shackle. f

Ahars 25 to normally urge thedetents ont- .i

'W`ardly, as show` in Fig. 5,;into locking position.` i" i i i i A, i. y

At their upper endsthese swinging detents Vareformed` with overlappinglugs 28 and 129, which are oppositely disposed upon serted between themas shown in Fig. 7,

` when the detents are-in locking position. A

drawn from the lock case.

stop 3l may be provided upon the lock case to t'orm an abutment to limitthe movement of the detents under the tension oi the springs 4when theshackle is y' entirely withdrawn from the case. A ward niay 'be securedto the lock case and the key is provided with the notch 33 to clear thisward and permit the properlkey to rotate freely when inserted in the keyopening 34. It will be obvious. that by placing this ward at differentpositions in the lock or by changing its size, a numberoi' key changesmay be provided. At the Vsame time a master key may readily be preparedfor a. great many locks by merely providing the'key with a relativelywid-e notch 33,.,30 that it will clear any oi' the wards regardless'oiwhere they may be placed in the lock case.Y c

Whenthe key is inserted into the keyhole, as shown in dotted llines inFig. 7, it will lie latwise between the overlapping Alugs upon thedetents, the edges oi the key projecting Y respectively beyond the edgesot the lugs so that when the key is rotated, the sides thereof adjacentthe edges engage theedges oi' the .lugs and move the upper vend-s of thedetents It outwardly', as shownin Fig. 6, causing the vlower edges ofthese detents, which enter theratchet teeth inthe shackle, to moveinward` lyand be witlidrawnsfrom the teeth to releasethe shackle andpermit it to be with- As soon as the key isV removed, the detents atonce assume their locked positions, due to the influence of the'sp'rings26 and 27' so that when the shackle is re-inserted inthe `lock case, itis immediately engaged by the detents and docked in place.

It will be obvious that I Vhave provided a very simple and veiiectivelocking mechanism for locks of this character and that the locks arecapable of being vmade with a large num- 'ber of key changes,"subject tothe operation of a master key 'of simple'fcharacter. 'Y l While I haveshown and described a pre- `ferred embodiment ofimy invention, it willbe understood that itis not to be limited to 'all the details shown, butis capable oi modiiication and variation within 'the Vspirit of theinvention andfwi'thin the scope ot the appended claims.

1. In a padlock, a lock case, a U-shaped 'shackle 'cooperatingtherewith, said shackle having ratchet teeth" upon the legs thereof, theopposite faces of said lock case being providedwith aligned openings sothat the Alegs offthe shackle may be passed entirely through the case, apair of detents pivoted -in the vvcase intermediate their ends, meansupon Vone end of each ofthe detents for engaging the ratchet teeth onthe shackle, .said

detents pivoted intermediate their ends within the lock case, andhaviugmeans at one of the ends thereoii to engage the ratchet teeth on theshackle, theoth'er'ends of said detents being provided with over-lappinglugs, and means to engage said lugsto simultaneously withdraw both ofsaid detents from 'engagement with the shackle.

3. Ina padlock, a case. having aligned.

.openings in opposite 'faces thereof, `a "shackle having legs to entersaid openings and pass entirely through the case, 'said legs being-provided vwith ratchet teeth ontheirop'posz j Ving surfaces, a pair ofdetents pivoted inter;

mediate their ends within the case, means at one end ofeach of thedetents to effect 'a oneway variable engagement Vwith the ratchet vteethof thesha'ckle, said detents being providedat theirother ends withoverlapping lugs adapted to be engaged by a key to move 'said detentstowithdraw them from 'enga-gement with the shackle. i

d. In combination, a lock case, a shackle completely detachable tromthecase and provided with arms i'nsertable thereinto, detents pivoted intheca-se intermediate their ends,

ut adapted at one vend thereof to engage said shackle, each of saiddetents 4being i'ormedy at its other end with a projecting lug, saidlugs being disposed in spaced overlapping positions, and adapted toreceive a key therebetween and adapted upon the rotation 'thereof tomove theadjacent ends of the detents outwardly and thereby, move theopposite ends of the detents inwardly to dis engage themV from theshackle.

5. In combination, a lockbase, a shackle completely detachable from thecase and provided with arms insertable thereinto, detents pivoted in thecase intermediate their ends, but adapted at one end thereof to engagesaid shackle, .each of said detents being vformed Vat Yits other endwith a projecting lug, said lugs being disposed in spaced overlappingpositions said lugs being adapted to receive a key Vtherebetween andadapted'upon the rotation thereof to move the adjacent ends of thedetents outwardly and thereby move the opposite ends of the detentsinwardly to di'sengagefthem `from the shackle, and a ward secured ltothe lock case and adapted to cooperate with a notch in a key.

6. In a padlock, a Acasefa shackle having legs designed to be slidablyreceived-inthe case and provided with notches, detents pivoted in thecase, each of said detents comprsing side members l. connected by upper4and lower cross-bars, the lower cross-bar of each detent being adaptedto engage in a notch upon the shackle; i i

7.111 a padlock, vaca/se, a shackle having ,each detentbeing adaptedtoengagein a notch upon `the'shackle, and operating lugs securedat theupper ends of Athe detents and adapted to be engaged by the key torelease the detentsfrom the shackle.

8p. Ina padlock,v a lock case, ayu-shaped shackle cooperating therewith,said shackle having a Series of `ratchet teeth uponthe legs thereof, theo posaefcesfof said 10c-k case being provide with aligned openin ssothat the legs of the shackle `may be passe entirely through the case,an opening for a key at the opposite end ofsaid case from which saidshackle is inserted, a` pair ofdetents mounted in caid case opposite oneyanother and extending towards said shackle and the end of the casinghaving the key opening there# in and adapted to engage theteeth on theshackle, said detents eing arranged to receive `a key therebetween and"upon rota-F tion of the key to be disengaged from said shackle. y Y

`ln witness whereof, I have hereunto set my hand this` 18 `day ofJanuar-y, 1924.

` HARRY B. PAGE. l

